A corrosion-resistant protection device for a canned pump

Abstract

The utility model provides a kind of corrosion-resistant protection device for shielding pump, including centrifugal chamber, base is installed in centrifugal chamber bottom, water storage tank is set in the lower side of base, pipe joint for connecting lead-out pipe is installed in the upper position of one side surface of water storage tank, two cross plates are symmetrically installed in the upper position in water storage tank, two perforations are opened in the upper surface of cross plate, stud is inserted in the perforation, the upper end of stud is connected with base, the lower end of stud is installed in the bottom of water storage tank, first nut is equipped in the upper side of perforation and the lower side of perforation, first nut is threadedly connected with stud, the utility model has the beneficial effects as follows: prevent the liquid erosion shielding pump of leakage.

Description

Technical Field

[0001] This utility model is a corrosion-resistant protective device for shielded pumps, belonging to the field of shielded pumps. Background Technology

[0002] As a type of centrifugal pump with a shaft seal-free design, the core advantage of a canned motor pump lies in integrating the pump impeller and the motor rotor on the same shaft. By using a shielding sleeve made of non-magnetic metal (such as stainless steel), the motor rotor and stator are completely isolated, thus forming an absolute seal between the pump chamber and the motor chamber. This fundamentally solves the leakage problem caused by shaft seal wear in traditional centrifugal pumps.

[0003] The centrifuge chamber of a canned motor pump has an inlet and an outlet. During actual use, these interfaces may experience seal failure due to aging of sealing components or improper installation, leading to liquid leakage. The leaked liquid gradually accumulates around the canned motor pump. Since canned motor pumps are typically bolted directly to the ground with minimal height difference, the accumulated leaked liquid easily soaks into the bottom and surrounding components of the pump. Prolonged exposure to this corrosive environment will gradually corrode the pump's metal casing and connecting parts, affecting its structural strength and operational stability, and significantly shortening the equipment's lifespan. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a corrosion-resistant protective device for shielded pumps to solve the problems mentioned in the background art. This utility model prevents leaked liquid from eroding the shielded pump.

[0005] To achieve the above objectives, this utility model provides a corrosion-resistant protective device for shielded pumps, comprising:

[0006] Centrifuge chamber;

[0007] The base is installed at the bottom of the centrifuge chamber;

[0008] A water storage tank is located on the lower side of the base, and a pipe joint for connecting the drain pipe is installed on the upper part of one side of the water storage tank.

[0009] There are two horizontal plates, which are symmetrically installed in the upper part of the water storage tank. Two through holes are opened on the upper surface of each horizontal plate.

[0010] A stud is inserted into the through hole. The upper end of the stud is connected to the base, and the lower end of the stud is installed at the bottom of the water storage tank. A first nut is provided on both the upper and lower sides of the through hole, and the first nut is threadedly connected to the stud.

[0011] Furthermore, vertical holes aligned with the corresponding through holes are provided at the four corners of the upper surface of the base. The upper end of the stud passes through the vertical holes, and a second nut is provided on the upper and lower sides of the vertical holes. The second nut is threadedly connected to the stud.

[0012] Furthermore, a threaded head is installed at the lower end of the stud, and a threaded blind hole that mates with the threaded head is machined at the middle position of the upper surface of the stud. The threaded head on one stud is threaded into the threaded blind hole on another stud, and an internal threaded cylinder is threaded onto the threaded head on the lowest stud. The internal threaded cylinder is installed at the bottom of the water storage tank.

[0013] Furthermore, the centrifuge chamber is provided with an end cap on the side opposite to its inlet. A shielded motor is installed on the side of the end cap opposite to the centrifuge chamber. A plurality of first lugs are evenly installed on the outer surface of the centrifuge chamber away from the end cap. A plurality of second lugs that cooperate with the first lugs are evenly installed on the outer surface of the end cap. A plurality of third lugs that cooperate with the second lugs are evenly installed on the outer surface of the end of the shielded motor near the end cap. A long screw is inserted into the channel formed by the first lug, the second lug, and the third lug. A third nut is provided on the side of the second lug opposite to the first lug and on the side of the third lug opposite to the second lug. The third nut is threadedly connected to the long screw.

[0014] Furthermore, multiple connecting columns are evenly installed on the upper surface of the base, and the upper ends of the connecting columns are installed at the bottom of the centrifuge chamber.

[0015] Furthermore, a base plate strip is installed on the lower part of the two sides adjacent to the pipe joint of the water storage tank, and two fixing holes are opened on the upper surface of the base plate strip.

[0016] Furthermore, the upper surface of the base plate strip is machined with an oblong opening, which is located between two fixing holes.

[0017] The beneficial effects of this utility model are:

[0018] 1. A water storage tank is installed below the base at the bottom of the centrifuge chamber of the canned motor pump. This tank can directly collect liquid leaking from the inlet and outlet, preventing liquid from accumulating around the equipment. Pipe fittings on the side of the water storage tank can be connected to drainage pipes to promptly direct the collected leaked liquid to a designated location, preventing liquid from soaking the bottom and surrounding components of the equipment and reducing the risk of corrosion.

[0019] 2. The base is connected to the water storage tank by studs that pass through the perforations in the horizontal plate. The length of the studs elevates the entire canned pump, creating a height difference with the ground. The first nut restricts the relative position of the horizontal plate and the studs, while the second nut restricts the relative position of the base and the studs. This provides stable support for the canned pump and allows for adjustment of the elevation height, further reducing the probability of leaked liquid contacting the canned pump and lowering the possibility of corrosion.

[0020] 3. Connect the lower end of the stud to the bottom of the water storage tank, and then use the first nut to restrict the relative position of the stud and the horizontal plate. At this time, the structure formed by the stud and the horizontal plate strengthens the structure of the water storage tank, which helps to reduce the wall thickness of the water storage tank.

[0021] 4. Screw the threaded head of one stud into the threaded blind hole of another stud to assemble two adjacent studs. Select an appropriate number of studs according to the required height of the canned pump and connect multiple studs to each other. There is no need to make long studs, which helps to save materials. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a corrosion-resistant shielded pump protection device according to the present invention;

[0024] Figure 2 This is another perspective view of the corrosion-resistant shielded pump protection device of this utility model;

[0025] Figure 3 This is a schematic diagram of the assembly of the horizontal plate and the water storage tank in a corrosion-resistant shielded pump protection device according to this utility model.

[0026] Figure 4 This is a partial exploded structural diagram of the stud, base, and centrifuge chamber in a corrosion-resistant shielded pump protection device of this utility model;

[0027] In the picture:

[0028] 1. Centrifuge chamber; 11. First lug; 12. Long screw; 13. Second lug; 14. Third lug; 15. Third nut; 16. Shielded motor; 17. End cap;

[0029] 2. Base; 21. Vertical hole; 22. Connecting post;

[0030] 3. Water storage tank; 31. Fixing hole; 32. Base plate strip; 33. Pipe joint;

[0031] 4. Horizontal plate; 41. Perforation;

[0032] 5. Stud; 51. Internal threaded cylinder; 52. First nut; 53. Second nut; 54. Threaded blind hole; 55. Threaded head. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] Please see Figure 1 , Figure 2 and Figure 4 This utility model provides a technical solution: a corrosion-resistant shielded pump protection device, including a centrifuge chamber 1, and a plurality of connecting columns 22 evenly installed on the upper surface of the base 2. The upper end of the connecting columns 22 is installed at the bottom of the centrifuge chamber 1, and the connecting columns 22 serve to connect the base 2 and the centrifuge chamber 1.

[0035] See Figure 1 A centrifuge chamber 1 has an end cap 17 on the side opposite to its inlet. A shielded motor 16 is installed on the side of the end cap 17 opposite to the centrifuge chamber 1. Multiple first lugs 11 are evenly installed on the outer surface of the end of the centrifuge chamber 1 away from the end cap 17. Multiple second lugs 13 that cooperate with the first lugs 11 are evenly installed on the outer surface of the end of the end cap 17. Multiple third lugs 14 that cooperate with the second lugs 13 are evenly installed on the outer surface of the end of the shielded motor 16 near the end cap 17. A long screw 12 is inserted into the channel formed by the first lugs 11, the second lugs 13 and the third lugs 14. A third nut 15 is provided on the side of the second lug 13 opposite to the first lug 11 and the side of the third lug 14 opposite to the second lug 13. The third nut 15 is threadedly connected to the long screw 12. The centrifuge chamber 1, the end cap 17 and the shielded motor 16 are tightly connected through the cooperation of the first lugs 11, the second lugs 13 and the third lugs 14 with the long screw 12 and the third nut 15, which improves the overall rigidity of the equipment.

[0036] See Figures 1-3 The water storage tank 3 is located below the base 2. A pipe connector 33 for connecting the drain pipe is installed on the upper part of one side of the water storage tank 3. A base plate strip 32 is installed on the lower part of the two sides adjacent to the pipe connector 33. Two fixing holes 31 are formed on the upper surface of the base plate strip 32, and an elongated opening between the two fixing holes 31 is machined on the upper surface of the base plate strip 32, thereby reducing the amount of material used in the production of the base plate strip 32. The water storage tank 3 is located below the base 2 at the bottom of the centrifuge chamber 1. This water storage tank 3 can directly collect liquid leaking from the inlet and outlet, thus preventing liquid from flowing and accumulating around the shielded pump. The pipe connector 33 is installed on the side of the water storage tank 3. This pipe connector 33 can be connected to the drain pipe, thereby guiding the collected leaked liquid to a designated location in a timely manner, fundamentally preventing liquid from soaking the shielded pump and its surrounding components, and reducing the possibility of corrosion of the shielded pump.

[0037] See Figures 1-4There are two horizontal plates 4, which are symmetrically installed in the upper part of the water storage tank 3. Two through holes 41 are opened on the upper surface of the horizontal plate 4, and studs 5 are inserted into the through holes 41. Vertical holes 21 are opened at the four corners of the upper surface of the base 2, which are aligned with the corresponding through holes 41. The upper end of the stud 5 passes through the vertical hole 21. The upper side and the lower side of the vertical hole 21 are provided with second nuts 53, which are threaded to the stud 5. The upper end of the stud 5 is connected to the base 2, and the lower end of the stud 5 is installed at the bottom of the water storage tank 3. The upper side and the lower side of the through hole 41 are provided with first nuts 52, which are threaded to the stud 5. The base 2 and the water storage tank 3 are connected by the studs 5 that pass through the through holes 41 of the horizontal plate 4. The length of the stud 5 is used to raise the entire shielded pump, so that it forms a certain height difference with the ground. The first nut 52 is used to fix the relative position of the horizontal plate 4 and the stud 5, while the second nut 53 fixes the relative position of the base 2 and the stud 5. This not only provides stable support for the canned pump, but also allows for adjustment of the lifting height, further reducing the contact between leaked liquid and the canned pump and lowering the possibility of corrosion.

[0038] In addition, the lower end of the stud 5 is connected to the bottom of the water storage tank 3, and the first nut 52 is used to limit the relative position of the stud 5 and the horizontal plate 4. At this time, the structure formed by the stud 5 and the horizontal plate 4 can reinforce the water storage tank 3 and help to reduce the wall thickness of the water storage tank 3.

[0039] See Figures 1-4 The lower end of each stud 5 is fitted with a threaded head 55. A threaded blind hole 54, matching the threaded head 55, is machined at the center of the upper surface of each stud 5. The threaded head 55 of one stud 5 is threaded into the threaded blind hole 54 of another stud 5. An internally threaded cylinder 51 is threaded onto the threaded head 55 of the lowest stud 5, and the internally threaded cylinder 51 is installed at the bottom of the water storage tank 3. Connecting adjacent studs 5 is achieved by screwing the threaded head 55 of one stud 5 into the threaded blind hole 54 of another stud 5. The number of studs 5 can be flexibly selected based on the required elevation of the canned motor pump. Multiple studs 5 can be interconnected to meet the height requirements, eliminating the need to specially manufacture longer studs 5 and thus saving material costs.

[0040] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corrosion-resistant protective device for a shielded pump, characterized in that, include: Centrifuge chamber (1); The base (2) is installed at the bottom of the centrifuge chamber (1); A water storage tank (3) is located on the lower side of the base (2), and a pipe joint (33) for connecting the drain pipe is installed on the upper side of one side of the water storage tank (3); There are two horizontal plates (4), which are symmetrically installed in the upper part of the water storage tank (3). Two through holes (41) are opened on the upper surface of the horizontal plates (4). A stud (5) is inserted into the through hole (41). The upper end of the stud (5) is connected to the base (2). The lower end of the stud (5) is installed at the bottom of the water storage tank (3). A first nut (52) is provided on both the upper and lower sides of the through hole (41). The first nut (52) is threadedly connected to the stud (5).

2. The corrosion-resistant shielded pump protection device according to claim 1, characterized in that: The base (2) has vertical holes (21) at the four corners of its upper surface that are aligned with the corresponding through holes (41). The upper end of the stud (5) passes through the vertical holes (21). The upper side and the lower side of the vertical holes (21) are provided with second nuts (53), which are threadedly connected to the stud (5).

3. The corrosion-resistant shielded pump protection device according to claim 1, characterized in that: The lower end of the stud (5) is equipped with a threaded head (55). A threaded blind hole (54) that matches the threaded head (55) is machined in the middle of the upper surface of the stud (5). The threaded head (55) on one stud (5) is threaded into the threaded blind hole (54) on another stud (5). The threaded head (55) on the lowest stud (5) is threaded with an internal threaded cylinder (51). The internal threaded cylinder (51) is installed at the bottom of the water storage tank (3).

4. The corrosion-resistant shielded pump protection device according to claim 1, characterized in that: The centrifuge chamber (1) is provided with an end cap (17) on the side away from its inlet. A shielded motor (16) is installed on the side of the end cap (17) away from the centrifuge chamber (1). A plurality of first lugs (11) are evenly installed on the outer surface of the end of the centrifuge chamber (1) away from the end cap (17). A plurality of second lugs (13) that cooperate with the first lugs (11) are evenly installed on the outer surface of the end of the end cap (17). A plurality of third lugs (14) that cooperate with the second lugs (13) are evenly installed on the outer surface of the end of the shielded motor (16) near the end cap (17). A long screw (12) is inserted in the channel formed by the first lugs (11), the second lugs (13) and the third lugs (14). A third nut (15) is provided on the side of the second lug (13) away from the first lug (11) and on the side of the third lug (14) away from the second lug (13). The third nut (15) is threadedly connected to the long screw (12).

5. The corrosion-resistant shielded pump protection device according to claim 1, characterized in that: Multiple connecting columns (22) are evenly installed on the upper surface of the base (2), and the upper ends of the connecting columns (22) are installed at the bottom of the centrifuge chamber (1).

6. The corrosion-resistant shielded pump protection device according to claim 1, characterized in that: The water storage tank (3) and the pipe joint (33) are each equipped with a bottom plate strip (32) at the lower part of the two sides adjacent to each other. The bottom plate strip (32) has two fixing holes (31) on its upper surface.

7. The corrosion-resistant shielded pump protection device according to claim 6, characterized in that: The upper surface of the bottom plate strip (32) is machined with an elongated oval opening, which is located between two fixing holes (31).

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